Improvements and new concepts for traffic control in work zonesFormat: [microform].
Publisher: [Washington, D.C.] : U.S. Dept. of Transportation, Federal Highway Administration ;
Date: 1985- This title can be found in 1 Iowa libraries.
Improvements and new concepts for traffic control in work zones.Publisher: Springfield, Va. : National Technical Information Service [distributor], Springfield, Va. : National Technical Information Service [distributor],
Date: 1985- This title can be found in 1 Iowa libraries.
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